72-24-05 MCDONNELL DOUGLAS: Amdt. 39-1566. Applies to Model DC-9-10 series airplanes certificated in all categories. \n\n\tCompliance required within the next 3,000 hours' time in service after the effective date of this AD, unless already accomplished. \n\n\tTo prevent possible injury to the forward flight attendant, remove the entry door closing assist handle, P/N 3918664-1, and install a handle, P/N 3924268-1, per McDonnell Douglas Service Bulletin No. 25-31, dated May 4, 1966, or McDonnell Douglas Service Bulletin No. 25-185, dated March 31, 1972, or later FAA-approved revisions, or an equivalent modification approved by the Chief, Aircraft Engineering Division, FAA, Western Region. \n\n\tThis amendment becomes effective January 3, 1973.